hort.net Seasonal photo, (c) 2006 Christopher P. Lindsey, All Rights Reserved: do not copy
articles | gallery of plants | blog | tech blog | plant profiles | patents | mailing lists | top stories | links | shorturl service | tom clothier's archive0
Gallery of Plants
Tech Blog
Plant Profiles
Mailing Lists
    Search ALL lists
    Search help
    Subscription info
Top Stories
sHORTurl service
Tom Clothier's Archive
 Top Stories
New Trillium species discovered

Disease could hit Britain's trees hard

Ten of the best snowdrop cultivars

Plant protein database helps identify plant gene functions

Dendroclimatologists record history through trees

Potato beetle could be thwarted through gene manipulation

Hawaii expands coffee farm quarantine

Study explains flower petal loss

RSS story archive

Re: bulbifer answer

> On Thu, 31 Aug 2000, newton wrote:
> > nick of time, of my various greens, I noticed that my 2" dia. A.
> > bulbifer is sending up a small shoot from the base of the leaf. While
> > I find that 
> > Q:  How common is this behavior? 

In my cultivation smaller specimens of Amorphophallus bulbifer 
usually set up a couple of leaves (2 to 5) one eafter each other for 
about 5 months before they finally go dormant (if not growing all year 
round, which is not uncommon in this species). Adult specimens 
show a strict dormancy and produce only one leaf in a single growing 

Other Amorphophallus species have the same tendency to produce 
two or more leaves as long as they have not gained flowering size 
(e.g. A. albispathus, A. krausei, A. muelleri, even A. titanum made 
three leaves this year).

On 1 Sep 2000, at 10:16, Roger Sieloff ISDH wrote:
> (...) Finally, I find that Amorphophallus in general need full sunlight 
to reach their maximum size.

Maybe its because I am living in Central Europe with extended days 
in summer, having daylight from 5:00am until 10:30pm in June til 
August, that most specimens being grown in full sun may face 
severe leaf burnings from excessive radiation. That's why I keep them 
during these months rather in a half-shaded to shaded place and 
from September onwards in full sun (at present daylight time is 
reduced from 7am til 8:30pm already) and which has positive effects 
in weight gaining.
As far as I know that accumulated radiation in summer in C Europe 
may be much higher than it is in the tropics due to our very long 
days. And the more leaves burn the smaller the surface to produce 
nutrients which are necessary to increase corm size.

Best wishes,

Bjørn Malkmus

 © 1995-2017 Mallorn Computing, Inc.All Rights Reserved.
Our Privacy Statement
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index